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Friday, November 13, 2015

Huge Ozone Hole Over Antarctica Is Back!

By Elizabeth Newbern
www.livescience.com
11-11-15

The hole in the ozone layer over Antarctica is nearing record-breaking size again, scientists say. In fact, new observations show that the infamous "ozone hole" is currently larger than the entire continent of North America.

Researchers at the German Aerospace Center are using Earth-observing satellites to monitor the protective ozone layer and recently reported that a large, nearly circular hole over Antarctica extends over an area measuring 26 million square km (10 million square miles). [...]

2 comments
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The ozone hole is the area where the magnetospheric foot foot print touches down on the earth. Cold comes from space.

“High-latitude plasma convection from Cluster EDI: variances and solar wind correlations”“The magnitude of convection standard deviations is of the same order as, or even larger than, the convection magnitude itself. Positive correlations of polar cap activity are found with |ByzIMF| and with Er,sw, in particular. The strict linear increase for small magnitudes of Er,sw starts to deviate toward a flattened increase above about 2 mV/m. There is also a weak positive correlation with Pdyn. At very small values of Pdyn, a secondary maximum appears, which is even more pronounced for the correlation with solar wind proton density. Evidence for enhanced nightside convection during high nightside activity is presented.”‘Low to Moderate values in the solar wind electric field are positively correlated to convection velocity.”“A positive correlation between Ring current and convection velocity.”http://web.ift.uib.no/Romfysikk/RESEARCH/PAPERS/forster07.pdfLow Energy ion escape from terrestrial Polar Regions.http://www.dissertations.se/dissertation/3278324ef7/

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